Nonbefillable containreb



@m. 1 m, 1925 I C. c. FREDERICKS NONREFILLABLE CONTAINER Filed Oct. 20, 1922 Patented Oct. 20, 1925.

7 1,557,577 UNITED STATES PATENT OFFICE."

' CHARLE COLEMAN FREDEBICKS, GI ST. LOUIS, MISSOURI.

NONBEFILLABLE CONTAINER.

Application filed October 20, 1922. Serial No. 595,797.

To all whom it my concern durable device preventing refilling of the container without mutilation of the structure. Other objects'will bein' part obvious and in part pointed out hereinafter.

The invention accordingly consists of the elements and combinations of elements, features of construction, and arrangements of parts which will be exemplified in the structure hereinafter described and the scope of the application of whichwill', be indicated in the following claims.

Inthe accompanying drawings, in which is shown one of various possible embodiments of the invention,

Fig.1 is a plan of a preferred embodiment of the invention; Figs. 2 and 3 are central vertical sections on the line 3-3 of Fig. 1; Fig.3 is on an enlarged scale.

Similar reference characters indicate ,corresponding parts throughout the several views of the drawings.

Referringnow more particularly to Figs. 1 and 2 of the accompanying drawings, there is illustrated at 1 a container such as a steel drum having a'shell 3 united to the head 4 and bottom 5 at 7 by welding or other suitable means forming per se no feature'of the resent invention.

T 1e head 4 has a boss 9 provided with a pipe tap 11 of suitable diameter such as 2 Inches. Threaded in the boss is a bushing 13 centrally tapped at 15 to receive the threaded end of a suction pipe 17 extending downwardly to a oint ad acent the bottom of the container. pon the lower end of the suction pipe is threaded a foot-valve cas ng 18 having a base slotted at 19 and restlng against the bottom 5 of the container and having a steel ball 21 normally restin m a (Kl-degree seat 23. A pin 25 is riven the head 4 of' the container.

through the valve housing 18 after the ball is inserted therein and movement of the ball.

A measuring or non-measuring pump (not shown) may be mounted in the upper porprevents excessive tion of the threads 15 in the bushing 13, for

dispensin oil or other liquids from the contamer. en the pump is operated to' roduce a suction in the pipe 17 the bal 21 lifts, admitting liquid from the container into t 'e suction pi e.- Returnmovement of the liquid from t e suction pipe into the container is prevented because the ball seats when suction in the pipe is relieved.

Removal of the pipe 17 and foot valve is prevented by the bushing 13. Removal of the bushing is prevented by the safety set .screw 29 (Fig. 3) which is screwed intov place when the complementary threaded recesses 31, 33 in bushing 13 and boss 9, respectively, are brought into registry with one another when the bushing has been completely threaded into the boss. After the set-screw 29 is in lace at the bottom of these recesses 31, 33, t e recesses are filled with litharge or other hard filler, u to the level of-thetop of the bushing and oss. Thereafter paint or other suitable seal 35 is aplied to the outer surface of bushing and ss (and to the rest of the head if desired) to conceal the location of the recesses 31, 33. The seal 35 shows a customer at a dglance that the container has not been refille The level of liquid in the container may be conveniently shown by a float 37 mounted at the lower end of a rod 39 that passes through a plug 41 threaded in a boss 43 .in.

The slight clearance between rod and plug serves as a vent for the container but is too small for liquid to pass therethrough into or out of the container. Removal of the plug from the boss 43 is prevented by means similar to those above described in connection with the bushing 13 and boss 9. For brevity, this means will not be .described again at this point. y

In view of the above, it is'believed that the various features of this invention will be clear without further elaboration, and it will be seen that with the apparatus herein described, the several objects of the invention are achieved and other advantageous results attained.

As many changes could be made in carry ing out the above construction without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limitinv sense.

I claim:

1. A non-refillable container comprising a boss on the head, a bushing threaded therein, the upper surfaces of the head and bushing being flush with one another, means preventing removal of the bushing from the boss without mutilation of the device, and a suction pipe threaded into the bushing and having at its lower end a foot valve resting against the bottom of the container, the foot valve comprising a casing having a slotted base, a seat in the base, a ball normally resting against the seat, and a pin adapted to be driven through the casing above the ball to limit movement of the ball; said means comprising complementary threaded recesses in bushing and boss adapted to register with one another when the bushing has been screwed into place in the boss, a set-screw adapted to be screwed into the lower portion of the cooperating recesses when thus in registry, and means for sealing the exposed portlon of the recesses and the flush surfaces of the head and bushing to thereby prevent access to the set-screw without mutilating said sealing means.

2. A non-refillable container comprising a boss on the head, a bushing threaded therein, means preventing removal of the bushing from 'the boss without mutilation of the device, a suction pipe threaded into the bushing and having at its lower end a foot valve resting against the bottom of the container, the foot valve comprising a casing having a slotted base, a seat in the base, a ball normally resting against the seat, and a pin ada ted to be driven through the casing above t e ball to limit movement of the ball; a fioat in the container, a rod extending upwardl from said float, a second boss in the hea a plug threaded therein and perforated to receive said rod, and

means for preventing removalof the plugfrom the boss without mutilation of the device, the clearance between rod and plug serving as a vent but being too small to permit passage of liquid into or out of the container.

3. A non-refillable steel drum comprising a shell, a head and bottom united thereto, a tap ed boss on the head extending downwardl therefrom, a bushing threaded therein an mounted fiush with the head, means preventing removal of the bushing from the oss without mutilation of the device, and a suction pipe threaded into the bushing and having at its lower end'a check valve, said means comprising complementary tion of the device, a suction pipe threaded into the bushingand having at its lower end a che'ckvalve, a float in the container, a rod extending upwardly from said float, a second boss in the head, a plug threaded therein and erforated to receive said rod, and means or preventing removal of the plug from the boss without mutilation of the device, the clearance between rod and plug serving as a vent butbeing too small to permit passage of liquid into or out of the container.

5. A non-refillable steel drum comprising a shell, a head and bottom united thereto, a tapped boss on the head, a bushing threaded therein, means preventing removal of the bushing from the boss without mutilation of the device, a suction pipe threaded into the bushing and having at its lower end a check valve restin against the bottom of the container, the c eck valve comprising a casing having a slotted base, a seat in the base, a ball normally resting against the seat, anda pin adapted to be driven through the casing above the ball to limit movement of the ball; said means comprising complementary threaded recesses in bushing and boss adapted to register with one another when the bushing has been screwed into place in the boss, a set-screw adapted to be screwed into the lower portion of the cooperating recesses when thus in registry, means for sealing the exposed portion of the recesses and preventing access to the set-screw without mutilating said sealing means; a float in the container, a rod extending upwardl from said float, a second boss in the head a plug threaded therein and perforated to receive said rod, and means similar to said first means for reventing removal of the plug from the oss without mutilation of the device, the clearance between rod and plug serving as a vent but being too small to permit passage of liquid into or out of the container.

In testimony whereof, I have signed my name to this specification this 18th day of October, 1922. CHARLES COLEMAN FREDERICKS. 

